Journal of Fluorescence最新文献_第4页

Synthesis of Carbon Dots/PVP Composite for White Light Emitting Diode (WLED) Application.

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-02-08 DOI: 10.1007/s10895-025-04167-4

Archana Pandey, Vaishali Raikwar, Devayani Awade

{"title":"Synthesis of Carbon Dots/PVP Composite for White Light Emitting Diode (WLED) Application.","authors":"Archana Pandey, Vaishali Raikwar, Devayani Awade","doi":"10.1007/s10895-025-04167-4","DOIUrl":"https://doi.org/10.1007/s10895-025-04167-4","url":null,"abstract":"Carbon dots (CDs) are extensively utilized in biomedicine, optical devices, and sensing due to their low toxicity, excellent optical properties, and ease of synthesis. Nonetheless, there is ongoing discussion over the comprehensive investigation of CDs photoluminescence (PL) process because of their intricate architectures and surface functions. Carbon dots (CDs) and CD/PVP composites were one step synthesized in a hydrothermal process using citric acid and NaOH as precursors. Due to surface defects of CDs after incorporating into Polyvinylpyrrolidone (PVP) both shift in color as well as change in emission is observed. It shows the enhancement of the luminescence property of CDs/PVP and the application of CD/PVP composite in the field of optical emission. Further for practical application, emission of white light emitting diodes (WLEDs) was demonstrated by coating a 370 nm UV-LED with CD/PVP composite. The WLED shows significant CRI, good S/P ratio, the color gamut score Rg and color fidelity score Rf which are essential features for a good light source. Our research offers a valuable reference for CD/PVP composites in a facile, low temperature and low-cost hydrothermal process and developing WLED with UV-LED and metal free phosphors.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143374316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Optical Properties, UV-Vis. Absorption and Fluorescence Spectra of 4-Pentylphenyl 4-n-benzoate Derivatives in Different Solvents.

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-02-08 DOI: 10.1007/s10895-025-04154-9

Yadigar Gülseven Sıdır, İsa Sıdır

{"title":"The Optical Properties, UV-Vis. Absorption and Fluorescence Spectra of 4-Pentylphenyl 4-n-benzoate Derivatives in Different Solvents.","authors":"Yadigar Gülseven Sıdır, İsa Sıdır","doi":"10.1007/s10895-025-04154-9","DOIUrl":"https://doi.org/10.1007/s10895-025-04154-9","url":null,"abstract":"In this paper, electronic absorbance and fluorescence spectra of 4-Pentylphenyl 4-n-benzoate derivatives have been measured in 29 solvents, which are non-polar, polar protic and polar aprotic solvents, and electronic transitions that vary depending on the solvent are identified. As the solvent polarity increases, the forbidden energy difference between the frontier orbitals decreases. The statistical models in order to describe the solvent effect were derived using different solvent parameters. Quite complex and multiple absorbance transitions were observed in different solvent environments. Local fluorescence transition and intramolecular charge transfer occurred in the fluorescence spectra. Absorbance transitions are global transitions, and π*←π is the absorbance electronic transition. The frontier molecular orbitals and electrostatic potential surface were founded using quantum chemical calculations. Refractive indices were found with five different methods and forbidden energy gaps were found with the Tauc method. The forbidden energy ranges were found around 4.1 and 4.5, and the forbidden energy gap decreased as the alkyl chain became longer. All compounds can be defined as insulation materials according to the forbidden energy range. Refractive index values close to the E7 liquid crystal mixture used in liquid crystal display panels were found in the investigated liquid crystals.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143374321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Insight Into Unveiling Nano Luminescence for Industrial Dye Detection.

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-02-07 DOI: 10.1007/s10895-025-04151-y

E Safamariyam, K P Synumol, Anu Jayanthi Panicker, Mizaj Shabil Sha, Shabnam Roshan, Sarada Prasad Dakua, Vaisali Chandrasekar, Ajay Vikram Singh, Kishor Kumar Sadasivuni

{"title":"An Insight Into Unveiling Nano Luminescence for Industrial Dye Detection.","authors":"E Safamariyam, K P Synumol, Anu Jayanthi Panicker, Mizaj Shabil Sha, Shabnam Roshan, Sarada Prasad Dakua, Vaisali Chandrasekar, Ajay Vikram Singh, Kishor Kumar Sadasivuni","doi":"10.1007/s10895-025-04151-y","DOIUrl":"https://doi.org/10.1007/s10895-025-04151-y","url":null,"abstract":"Dye, a major contaminant from the textile, paper, and pulp industries, is a serious environmental and human health hazard. Because of their low cost, environmental friendliness, and sustainability, semiconductor nanoparticles are among the most effective photocatalysts for detecting dyes in wastewater. Quantum dots (QDs), particularly Carbon quantum dots (CQDs), have received a lot of attention due to their unique optical and electrical properties, making them excellent for applications such as sensing and detection. This paper describes a unique microwave-assisted method for synthesising CQDs in ambient reaction conditions, providing a fast, scalable, and passivation-free alternative to traditional methods. The CQDs were characterised using SEM, XRD, FTIR, UV-Vis spectrophotometry, and photoluminescence, which confirmed their uniform size distribution and outstanding optical characteristics. The CQDs had detection limits of 0.413 ppm for cresol red and 0.847 ppm for cresol purple, indicating great sensitivity and selectivity over a wide pH range. These findings propose a new, sustainable, and cost-effective alternative for tackling water pollution and its detrimental effects on aquatic ecosystems, hence increasing the use of Carbon QDs in environmental restoration.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: Development of Eco-Friendly Scattering and Fluorimetric Methods for the Determination of Clemastine Through Its Interaction with Eosin Y: Assessment of Whiteness, Blueness, and Greenness Tools.

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-02-07 DOI: 10.1007/s10895-025-04174-5

Mohamed A Abdel-Lateef, Ibrahim A Darwish, Hassanien Gomaa, Noha S Katamesh

引用次数: 0

Novel Thiourea-Based Chemosensor for Ultrasensitive and Selective Detection of Hg².

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-02-07 DOI: 10.1007/s10895-025-04147-8

Mian Muhammad, Sikandar Khan, Hamed M Al-Saidi, Jari S Algethami, Mohsen A M Alhamami, Mubark Alshareef

{"title":"Novel Thiourea-Based Chemosensor for Ultrasensitive and Selective Detection of Hg2.","authors":"Mian Muhammad, Sikandar Khan, Hamed M Al-Saidi, Jari S Algethami, Mohsen A M Alhamami, Mubark Alshareef","doi":"10.1007/s10895-025-04147-8","DOIUrl":"https://doi.org/10.1007/s10895-025-04147-8","url":null,"abstract":"We have successfully developed a novel thiourea-based chemosensorN-((6-methylbenzo[d]thiazol-2-yl)carbamothioyl)-3,5-bis(trifluoromethyl)benzamide, TS, specifically designed for the detection of Hg2+. The structure of TS was comprehensively characterized using techniques such as 1H NMR, FT-IR, and fluorescence spectroscopy. TS exhibited exceptional fluorescence enhancement in the presence of Hg2+ ions when tested against a broad range of metal ions, including Cr3+, Co2+, Ca2+, Na+, Pb2+, Mn2+, K+, Ni2+, Mg2+, Zn2+, Cd2+, Cu2+, Ag+, and Al3+. The selectivity and sensitivity studies were performed in a MeOH/water (2:98, v/v) solvent system, where TS demonstrated a highly sensitive response to Hg2+ ions with a detection limit as low as 0.005 µg/mL. Insights into the sensing mechanism were explained through fluorescence and Job's plot analysis, confirming a robust and efficient detection pathway with a 2:1 binding mode between TS and Hg2+. To assess its real-world applicability, recovery experiments were conducted on environmental and agricultural samples spiked with Hg2+ ions. The chemosensor achieved impressive recovery rates ranging from 90.0 ± 0.24% to 102.0 ± 0.58% across various concentration levels, demonstrating its accuracy and reliability. The unique attributes of TS, including its cost-effectiveness, simplicity, high selectivity, and ultra-sensitivity, make it an excellent candidate for the detection of trace levels of Hg2+ in diverse applications.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143364999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sensing with Precision: The R2-Fluorescent Probe as a Smart Tool for Metal Ion Detection.

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-02-05 DOI: 10.1007/s10895-025-04145-w

Ritu, Anjana Sarkar

{"title":"Sensing with Precision: The R2-Fluorescent Probe as a Smart Tool for Metal Ion Detection.","authors":"Ritu, Anjana Sarkar","doi":"10.1007/s10895-025-04145-w","DOIUrl":"https://doi.org/10.1007/s10895-025-04145-w","url":null,"abstract":"We present the synthesis, characterisation, and application of a novel R2-based fluorescent probe for selective metal ion detection. Comprehensive studies using UV-Vis absorption and photoluminescence spectroscopy revealed strong binding with cobalt (Co2+) and aluminium (Al3+) ions, with a 2:1 binding stoichiometry (probe: metal) and with a detection limit as low as 5.5 × 10-8 mol/L for aluminium and 3.2 × 10-8 mol/L for cobalt, highlighting its remarkable sensitivity. With no interference from other metal ions, the probe showed outstanding stability and selectivity over a broad pH range. Analyses of actual water samples verified its usefulness in environmental monitoring. To further demonstrate the probe's potential in sophisticated sensing applications, it was also used to build a molecular logic gate. The experimental results were theoretically supported by Density Functional Theory (DFT) calculations, which also shed light on the binding mechanism. The R2 probe is emphasised in this work as a sensitive, specific, and adaptable instrument for environmental analysis and metal ion detection.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143189281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Examining Terpyridine Ligand Binding Interactions with Cobalt and Aluminium: Synthesis, ADME Assessment, Reversibility, and DFT Analysis.

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-02-05 DOI: 10.1007/s10895-024-04135-4

Ritu, Anjana Sarkar

{"title":"Examining Terpyridine Ligand Binding Interactions with Cobalt and Aluminium: Synthesis, ADME Assessment, Reversibility, and DFT Analysis.","authors":"Ritu, Anjana Sarkar","doi":"10.1007/s10895-024-04135-4","DOIUrl":"https://doi.org/10.1007/s10895-024-04135-4","url":null,"abstract":"This article emphasizes the influence of pyridine ring substitutions in 2,2':6',2″-terpyridine unit, allowing for precise adjustment of ligand properties. This study explores terpyridine-based molecular systems, with its unique coordination properties assessed against a range of competing metal ions, highlighting the specific affinity of the terpyridine ligand towards aluminium (Al) and cobalt (Co) detection in Acetonitrile-water (ACN-H2O) mixed solvent (80:20). The terpyridine-based probe's structural component is meticulously designed and detailed investigated to understand their influence on sensing performance. Synthesised probes are characterised using NMR, IR, UV-Vis spectroscopy, and mass spectrometry. Such modifications present ample opportunities to customise the attributes and applications of resultant metal complexes. The interaction between the terpyridine-based probes and target metal ions is investigated through various experimental methods, including fluorescence spectroscopy and UV studies along with unassisted discernment of Cobalt through Naked-Eye. Observation turns out that the limit of detection is 4.4 × 10-8 mol/L for cobalt and 4 × 10-7 mol/L for aluminium and coordination features Showing the binding stoichiometry to be 1:1 for R1. ADME Studies have been performed to analyse pharmacokinetic and biological actions. DFT calculations were performed to investigate the molecular probe's coordination features and its corresponding metal complex.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143188862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facile Synthesis of Polyethylene Glycol Passivated N-doping CQDs as Fluorescent Probe for Multi-Target Simultaneous Detection in Heavy-Metals Solution.

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-02-04 DOI: 10.1007/s10895-025-04161-w

Guangmei Zhang, Shang Feng, Ruiming Ge, Ying Liu, Qiufeng Zhu

{"title":"Facile Synthesis of Polyethylene Glycol Passivated N-doping CQDs as Fluorescent Probe for Multi-Target Simultaneous Detection in Heavy-Metals Solution.","authors":"Guangmei Zhang, Shang Feng, Ruiming Ge, Ying Liu, Qiufeng Zhu","doi":"10.1007/s10895-025-04161-w","DOIUrl":"https://doi.org/10.1007/s10895-025-04161-w","url":null,"abstract":"In order to quickly and conveniently detect multiple heavy metal ions in aqueous phase simultaneously, a polyethylene glycol passivated N-doping carbon quantum (p-N-CQDs) was synthesized by a hydrothermal method with citric acid (carbon source), urea (nitrogen source) and polyethylene glycol (passivator). The as-prepared p-N-CQDs could be evenly dispersed in deionized water, and the average diameter was 1.83 nm, resulting in 18.72% of fluorescence quantum yield. As a sensor, the fluorescence of p-N-CQDs would be significantly quenched with Fe3+ or Cu2+ under the different maximum emission wavelength of 452 nm and 448 nm, respectively. Therefore, a method for simultaneously detecting multiple heavy metal ions was proposed by discriminative fitting of the fluorescence emission peaks after metal ion quenching. Upon the experiments, two linear calibration curves between resolving fluorescence intensities of p-N-CQDs and concentration of the metal ions were obtained within a range of 10 to 1000 µM of Cu2+ and 40 to 800 µM of Fe3+. And a limit of detection (LOD) of 0.032 µM was attained after resolving the curves based on the emission wavelength of 448 nm for Cu2+ and 452 nm for Fe3+ by a peak splitting software. In addition, the stability, selectivity and anti-interference of the proposal senor was confirmed.","PeriodicalId":15800,"journal":{"name":"Journal of Fluorescence","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143189076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Imidazo-Pyridin-Derived Fluorescent Probe for Monitoring Hydrogen Sulfide in Chinese Medicinal Materials.

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-02-04 DOI: 10.1007/s10895-024-04083-z

Lisi Mao, Xionggao Han, Honghua Wu, Lingyan Xu, Hui Zheng, Fengping Wang, Chaoyue Wang, Jingyan Xu

引用次数: 0

Synthesis, Spectral, and Computational Investigation of a New Red-Emissive BOIMPY.

IF 2.6 4区化学

Journal of Fluorescence Pub Date : 2025-02-04 DOI: 10.1007/s10895-025-04157-6

Alexander A Ksenofontov, Michail B Berezin, Pavel S Bocharov, Ilya A Khodov, Olga V Miloshevskaya, Elena V Antina

引用次数: 0